Siblings for Elizabeth?

Hi! So let's say theoretically you have siblings named Elizabeth and Josiah, sometimes called Betty and Joe. What sibling names for boys and girls would match those?

I am thinking for girls you would have to stick to classic names but I'm drawing sort of a blank for boys. Nickname suggestions are appreciated too. These are ideas I have so far. Please tell me if you think any of these would be a bad fit and what other suggestions you have.